ABAP Select data from SAP table KONMATGRPP_TCTRL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KONMATGRPP_TCTRL table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to KONMATGRPP_TCTRL. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the KONMATGRPP_TCTRL table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_KONMATGRPP_TCTRL TYPE STANDARD TABLE OF KONMATGRPP_TCTRL,
      WA_KONMATGRPP_TCTRL TYPE KONMATGRPP_TCTRL,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <KONMATGRPP_TCTRL> TYPE KONMATGRPP_TCTRL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KONMATGRPP_TCTRL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KONMATGRPP_TCTRL
  INTO TABLE IT_KONMATGRPP_TCTRL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KONMATGRPP_TCTRL
*  INTO TABLE @DATA(IT_KONMATGRPP_TCTRL2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_KONMATGRPP_TCTRL INDEX 1 INTO DATA(WA_KONMATGRPP_TCTRL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KONMATGRPP_TCTRL ASSIGNING <KONMATGRPP_TCTRL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KONMATGRPP_TCTRL>-MANDT = 1.
<KONMATGRPP_TCTRL>-POSNR = 1.
<KONMATGRPP_TCTRL>-POSTYPE = 1.
<KONMATGRPP_TCTRL>-MATNR = 1.
<KONMATGRPP_TCTRL>-MATKL = 1.

ENDLOOP.

LOOP AT IT_KONMATGRPP_TCTRL INTO WA_KONMATGRPP_TCTRL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KONMATGRPP_TCTRL-PROMNR, sy-vline,
  WA_KONMATGRPP_TCTRL-LAYNR, sy-vline,
  WA_KONMATGRPP_TCTRL-LAYARNR, sy-vline,
  WA_KONMATGRPP_TCTRL-DEFQUAN, sy-vline,
  WA_KONMATGRPP_TCTRL-DEFUNIT, sy-vline,
  WA_KONMATGRPP_TCTRL-TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KONMATGRPP_TCTRL you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_KONMATGRPP_TCTRL TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_KONMATGRPP_TCTRL INTO WA_KONMATGRPP_TCTRL.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KONMATGRPP_TCTRL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONMATGRPP_TCTRL-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROMNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONMATGRPP_TCTRL-PROMNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONMATGRPP_TCTRL-PROMNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DEFUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KONMATGRPP_TCTRL-DEFUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONMATGRPP_TCTRL-DEFUNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_KONMATGRPP_TCTRL_STR, 
MANDT TYPE STRING,
POSNR TYPE STRING,
POSTYPE TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
PROMNR TYPE STRING,
LAYNR TYPE STRING,
LAYARNR TYPE STRING,
DEFQUAN TYPE STRING,
DEFUNIT TYPE STRING,
TEXT TYPE STRING,
MARK TYPE STRING,
EXCPT_ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KONMATGRPP_TCTRL_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_KONMATGRPP_TCTRL_STR-MANDT sy-vline 
WA_KONMATGRPP_TCTRL_STR-POSNR sy-vline 
WA_KONMATGRPP_TCTRL_STR-POSTYPE sy-vline 
WA_KONMATGRPP_TCTRL_STR-MATNR sy-vline 
WA_KONMATGRPP_TCTRL_STR-MATKL sy-vline 
WA_KONMATGRPP_TCTRL_STR-PROMNR sy-vline 
WA_KONMATGRPP_TCTRL_STR-LAYNR sy-vline 
WA_KONMATGRPP_TCTRL_STR-LAYARNR sy-vline 
WA_KONMATGRPP_TCTRL_STR-DEFQUAN sy-vline 
WA_KONMATGRPP_TCTRL_STR-DEFUNIT sy-vline 
WA_KONMATGRPP_TCTRL_STR-TEXT sy-vline 
WA_KONMATGRPP_TCTRL_STR-MARK sy-vline 
WA_KONMATGRPP_TCTRL_STR-EXCPT_ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.